Indirect Measurement: Stars and Earth We may not go through them in exactly this order, but the objectives for this unit are that you will be able to do all of the following by the time we're done:
1. Define indirect measurement.
Explain why indirect measurement is used.
Be able to use different methods of indirect measurement to calculate the thickness of a page, the height of a tree, and the circumference of the earth.
2. Compare and contrast the models of the universe from Aristotle, Ptolemy, Copernicus, Galileo, Brahe & Kepler, and Newton.
3. Define a wave.
Explain what travels in waves and how waves move.
Know the two kinds of waves.
Define and understand the relationships between frequency, wavelength, period, and speed.
Calculate and solve for frequency, wavelength, period, and speed.
4. Explain the electromagnetic spectrum.
5. Explain how the composition of stars is determined.
6. Explain how it is determined that stars may be moving away or towards the Earth.
Explain which one is what most stars are doing, and Big Bang Theory's explanation for this.
7. Describe Earth's position during summer and winter solstice and autumnal and vernal equinox.
Explain why seasons occur.
8. Explain the formation of the sun and planets.
9. Be able to label and characterize the layers of the internal Earth.
Explain how density affects layering of the Earth.
10. Describe magnetism on and around the Earth, and how it affects the Earth.
We may not go through them in exactly this order, but the objectives for this unit are that you will be able to do all of the following by the time we're done:
1. Define indirect measurement.
- Explain why indirect measurement is used.
- Be able to use different methods of indirect measurement to calculate the thickness of a page, the height of a tree, and the circumference of the earth.
2. Compare and contrast the models of the universe from Aristotle, Ptolemy, Copernicus, Galileo, Brahe & Kepler, and Newton.3. Define a wave.
- Explain what travels in waves and how waves move.
- Know the two kinds of waves.
- Define and understand the relationships between frequency, wavelength, period, and speed.
- Calculate and solve for frequency, wavelength, period, and speed.
4. Explain the electromagnetic spectrum.5. Explain how the composition of stars is determined.
6. Explain how it is determined that stars may be moving away or towards the Earth.
- Explain which one is what most stars are doing, and Big Bang Theory's explanation for this.
7. Describe Earth's position during summer and winter solstice and autumnal and vernal equinox.- Explain why seasons occur.
8. Explain the formation of the sun and planets.9. Be able to label and characterize the layers of the internal Earth.
- Explain how density affects layering of the Earth.
10. Describe magnetism on and around the Earth, and how it affects the Earth.Key Vocabulary
Aphelion
Bright-line spectra
Constructive interference
Crest
Crust
Dark-line spectra
Destructive interference
Doppler Effect
Electromagnetic spectrum
Electromagnetic wave
Emission spectra
Frequency
Geocentrism
Heliocentrism
Hertz
Inner core
Longitudinal wave
Magnetosphere
Mantle
Mechanical wave
Outer core
Perihelion
Redshift
Transverse wave
Trough
Wave medium
Wave period
Wave speed
Wavelength